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首页> 外文期刊>Crystallography reports >Syntheses, Crystal Structures and Fluorescence Properties of Three Complexes Based on 2,2'-Quinoline-4,4'-dicarboxylic Ligands
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Syntheses, Crystal Structures and Fluorescence Properties of Three Complexes Based on 2,2'-Quinoline-4,4'-dicarboxylic Ligands

机译：Syntheses, Crystal Structures and Fluorescence Properties of Three Complexes Based on 2,2'-Quinoline-4,4'-dicarboxylic Ligands

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Three new coordination complexes, [Mn(L)(H2O)(4).(H2O)(3)](2) (1), [Mg(L)(H2O)(4).(H2O)(3)](2) (2), and [Cu(L)(phen).(H2O)(4)](2) (3) (H2L = 2,2'-biquinoline-4,4-dicarboxylic acid; phen = 1,10-phenanthroline), were synthesized by hydrothermal methods and structurally characterized by elemental analyses, IR spectroscopy and single crystal X-ray diffraction. Among the three complexes, complexes 1 and 2 are isostructural binuclear compounds, where L2- anions are coordinated with metal ions as bidentate bridging ligands. For complex 3, the L2- ligand binds monodentately to one Cu ion, while phen molecules act as bidentate chelating ligands, leading to the formation of a discrete mononuclear compound. In addition, the thermal stability and fluorescence properties of complexes 1-3 were measured. Complexes 1-3 exhibit luminescent emission with maxima at 428, 392, and 386 nm, originating from L2- ligands and coordination actions between metal ions and ligands, respectively.

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